I think she was laughing about the fuck her best friend comment
Anyways, yeah man just relax, toke, go for a drive... you're free now to find someone else and someone better. Believe me, no matter who you end up with at any point in life... you can always find someone better, someone to make you happier. Eh, for me... I revel in the fact the love of my life cheated on me, I dropped her and then she got into an a 'wonderful, amazing' relationship. Until he pistol whipped her, she called me crying about it... all I asked "What kind of pistol was it?"
Ah, forgot to mention... I was with her for 2 1/2 years.